Chain-guide for pull-switches.



G. W. GOODRIDGE.

GHAIN GUIDE FOR PULL SWITCHES.

APPLICATION FILED MAY 4. 1914.

Patented Nov. 16, 1915.

W 6 W M W M G W; w m MM J 6% F am o O w 1 nunnm FEIENS. lr-c mum ms UNITED STATES PATENT OFFICE.

GILBERT 'W'. GOODRIDGE, OF BRIDGEPORT, CONNECTICUT, 'ASSIGNORTO THE BRYANT ELECTRIC COMPANY, OF BRIDGEPORT, CONNECTICUT, A CORPORATION OF CON- ,NECTICUT.

CHAIN-GUIDE FOR PULL-SWITCHES.

To allwkom it may concern:

Be it known that I, GILBERT V. GO0D- RIDGE, a citizen of the United States. of America, and residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented acertain new and Improved Chain-Guide for Pull Switches, of Which the following is a specification.

My invention relates to chain guides for pull switches and particularly for pull sockets.

The object of my invention is to provide a guide of such character that the operating pull chain is held clear of the side of a lamp shade or reflector mounted on the socket.

In the accompanying drawings, Figure 1 is a side elevation of a socket and guide partially broken away, but showing my invention embodied thereon in one form; Fig. 2 is a partially broken plan thereof; Fig. 3 is a perspective of a detail; and Fig. at is a plan of a blank from which the tubular portion of the guide may be formed.

It is usual in installations of electric lamps to surround the bulb witha shade or reflector projecting beyond the area of the socket. When the switch is of the pull type, the operating chain, which emerges from a small bell-mouth on the socket, hangs against the side of the reflector, and not only'presents a more or less unsightly appearance but also endangers the shade which, being of glass and becoming heated, is apt to crack atthe point at which the chain touches it. Various lever devices have been suggested for holding the chain out of contact with the shade, but these are extremely unsightly as Well as adding materially to the cost of the device and being subject to disarrangement.

The present guide is of tubular construction and comprises two tubular arms 10 and 11 lying at right angles to each other and formed up from a single blank 12 (Fig. 4) bent to shape. At its attaching end the guide is rigid with a plate 13 having curved fingers 14: which take into curved guideways 15 formed in the upper and lower ears 16 of the socket standard 17 after the manner disclosed in Hubbell 943,077. The guide is thus readily attachable and detachable for refinishing, shipment, etc.

At the bend 18 of the guide the inner portion of the tube is cut away and the chain 19 supported in the peripheral groove of a Wheel: 20 which rotates on a pin 21. The

Specification of Letters Patent. Patgnted N 16 1915 Application filed May 4, 1914.

Seria1No.836.291.

latter passes between lugs 22 formed as wings on the blank 12 and bent in to form a wheel-carrying frame. This formation not only facilitates the bending of the blank at 18 but also renders the construction eX- tremely simple and economical since the wheel itself may readily be stamped up from a pair of blanks riveted or soldered together.

The arm 10 may be made in anv suitable length to clear the chain from the edge of a reflector. Under ordinary circumstances the arm 11 will lie substantially parallel with the axis of the socket and in the same direc-- tion as the lamp receiving end of the socket. It may however lie at any desired angle.

The axis 21 of the wheel 20 mav be so positioned that its groove lies above the bottom or sides of the tube arms. when the chain is under tension it will be supported out of contact with the sides of the guides and friction therewith thus minimized.

Various modifications of construction will H readily suggest themselves and I do not limit my invention to the details shown.

I claim as my invention l. A. chain guide for pull sockets comprising a member having tubular chain-guiding arms lying substantially at right angles to each other, one of said arms having means for securing the same to a pull socket and the other arm having a terminal bell end through which the pull chain freely passes.

2. A chain guide for pull sockets comprising a member having tubular chain-guiding arms lying substantially at right angles to each other and through both of which the chain freely passes, and a rotatable chainsupport at the angle between the guide arms.

3. A chain guide for pull sockets comprising a bent tubular member having the axis of its free end lying in a plane substantially parallel to the axis of the socket, the pull chain passing freely through both arms of the guide.

4. A chain guide for pull sockets comprising a member having tubular chain-guiding arms lying substantially at right angles to each other, and a rotatable chain support at the angle between the guide arms and positioned to hold the chain out of frictional contact with the walls of the guide when under tension.

5. A pull socket carrying a lamp shade or reflector and having a chain-guide compris- Consequently ing tubular arms at Substantially right angles to each other, one of said arms being secured to the socket and being of sutficient length to carry the downwardly extending arm beyond the margin of thereflector and the other arm having a terminal bell end through which the chain freely passes, substantially as described.

6. A chain guide for pull sockets comprising a member having tubular chain guiding arms lying substantially at right angles to each other, one of said arms having means cooperating with means on the socket to detachably lock said guide in predetermined position upon the socket.

- 7. A chain guide for pull sockets comprising a member having tubular guide arms lying substantially at right angles to each other and formed from a single blank, said guide arms being gapped to receive a running wheel at the angle subtended between the same, in combination withlugs on said guide arms and a running wheel arranged in said gap with its axis supported in said lu s.

A chain guide for pull sockets comprising a tubular member having portions lying substantially at right angles to ea -Ii other and formed from a blankreoessed'at the ing a horizontal tubular arm having means at its inner end for detachably engaginga pull socket and a downwardly extending-rtubula'r arm at its outer end through which the pull chain freely passes, the upper and outer walls of the horizontal and downwardly extending arms respectively being continuous at their meeting angle.

10. A chain guide for pull sockets, comprising a horizontal tubular arm having means at its inner end for detachably engaging a pull socket and a downwardly extendopposite sides of the outer end of said guide arm and a roller journaled in said lugs and.

over which the pull chain passes from the tubular guide.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses.

GILBERT W. GOODRIDGE.

Witnesses:

'H. M. WVICHERT,

A. H. J onus. 

